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Programming Guide 1-53

ESG Family Signal Generators Preparing for Use

Programming the Status Register System

The Standard Operation Condition Register continuously monitors the hardware and

firmware status of the instrument. Condition registers are read-only. To query the

condition register, send the command STATus:OPERation:CONDition? The response will

be the decimal sum of the bits which are set to 1. For example, if bit number 9 and bit

number 3 are set to 1, the decimal sum of the 2 bits is 512 plus 8. So the decimal value 520

is returned.

The transition filter specifies which types of bit state changes in the condition register will

set corresponding bits in the event register. The changes may be positive (from 0 to 1) or

negative (from 1 to 0). Send the command STATus:OPERation:NTRansition <num>

(negative) or STATus:OPERation:PTRansition <num> (positive) where <num> is the sum of

the decimal values of the bits you want to enable.

The Standard Operation Event Register latches transition events from the condition

Reading data from an event register will clear the content of that register. To query the

event register, send the command STATus:OPERation[:EVENt]?

Figure 1-25.

The Standard Operation Status Group also contains a Standard Operation Event Enable

STATus:OPERation:ENABle <num> command where <num> is the sum of the decimal

values of the bits you want to enable. For example, to enable bit 9 and bit 3 so that

whenever either of those bits is set to 1, the Standard Operation Status summary bit of the

Status Byte Register will be set to 1, send the command STAT:OPER:ENAB 520 (512 + 8).

The command STATus:OPERation:ENABle? returns the decimal value of the sum of the

bits previously enabled with the STATus:OPERation:ENABle <num> command.

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